/*****************************************************************************
 *   Copyright 2005 Tim A Wang
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 ****************************************************************************/
package com.jb.web.bean.validator;

import com.jb.faces.el.AttributeEvaluator;
import com.jb.web.bean.UIComponentImpl;
import com.jb.web.context.WebContext;
import com.jb.web.validator.ValidatorImpl;

import javax.servlet.jsp.el.ELException;


public class SpelValidator extends ValidatorImpl {
    static final long serialVersionUID = 123123L;

    public boolean evaluate(WebContext ctx, UIComponentImpl comp, String expression) {
        if (expression != null) {
            try {
                AttributeEvaluator aEvaluator = new AttributeEvaluator(ctx, comp);
                Boolean testObj = (Boolean) aEvaluator.evaluate(expression, Boolean.class);

                return testObj.booleanValue();
            } catch (ELException e) {
                //  e.printStackTrace();
                return false;
            }
        } else {
            return false;
        }
    }
}
